Foul-air ventilator



(No Model.) 2. Sheets-Sheet 1.

s. z. MARTIN. FOUL AIR VENTILATOR.

No. 483,631. Patented Oct. 4, 1892.

(No Model.) ShGetS-Sheet 2.

S. Z. MARTIN.

v FOUL AIR VENTILATOR. No. 483,631. Patented Oct. 4, 1892.

"Tllill f/wM/f/ff/ wwwmwm We Z W UNITED STATES PATENT OFFICE.

SAMUEL Z. MARTIN, OF LOOK HAVEN, PENNSYLVANIA.

FOUL-AIR VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 483,631, dated October 4, 1892.

Application iiled March 23, 1892.

To a/ZZ whom it may concern:

Be it known that I, SAMUEL Z. MARTIN, a citizen of the United States, residing at Lock Haven, in the county of Clinton and State of Pennsylvania, have invented certain new and useful Improvements in Foul-AirVentilators; and I do hereby declare the following to be a full, clear, and exact description of the in vention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in foul-air ventilators for systems of heating and Ventilating buildings wherein air is circulated in currents in and out of the room.

My inventionis adapted to be used in connection with any system of warming or ventilating rooms in which air, either hot or cold, is introduced into the room through suitable inlets or registers located upon the walls or doors of the room, but preferably near the lower part of the room, and in which the cold and foul air finds exit through similar openings or registers situated either adjacent to or away from the registers by which the air enters.

Heretofore the foul-air vents have consisted simply of a grating or register, in order to prevent foreign substances from entering the foul-air lines. It often happens, however, that dust, lint, paper, matches, and various other kinds of light refuse enter the iiues, which not only tend to choke them and obstruct the draft, but also endanger the security of the building by the liability of an accidental coniiagration.

The objects of my invention are to provide suitable means whereby such dust, paper, or other obstructing material will not be allowed to pass into the tlues, but will be held and retained in a suitable device from which they can be readily removed.

My device consists, generally, in substituting for the well-known register a box provided at its lower part with a suitable grating and divided into two parts by means of an upright partition, which does not extend quite to the top of the box. Secured to the top of this partition is a double or triple row of metal pins adapted to entangle and retard all dust or other waste which may pass up through the box and over the partition. Upon the Serial No. 426,172. (No model.)

front of the box and adjacent to this aforesaid row of pins is an opening through which all dust or other waste that may become enentangled with the pins maybe removed. This ppening is preferably covered by a flap or rap.

In order to better comprehend my inven tion, attention is called to the accompanying drawings, in which-M n Figure I represents a front view of my device, showing the dust-arresting device in position. Fig. 2 represents a side sectional view of the same. Fig. 3 represents a partial View of a room, showing my device inoperation.

In all of the several views like parts are designated by identical letters of reference.v

My device consists, generally, of a body or box A, constructed, preferably, of metal and open at the back and bottom. This box is of a general rectangular shape, with a thickness of about one-third of its height. The front B of this box is made, by preference, somewhat larger than the sides, in order that a flange C will be formed ou three sides of the box. A suitable partition D, made of tin or other sheet metal, is located within this box, as shown, and is mounted so that its main portion will be parallel with the front or face of the box. This partition extends to within a short distance of the top of the box, while its bottom curves gradually forward and meets the front of the box. For convenience this partition D is mounted in suitable grooves in the sides of the box, so that it may be easily removed, when necessary. Across the front of the box and as close to its bottom as possible is an oblong opening E, which is closed by a suitable grating F, preferably of an ornamental character. This grating is preferably mounted within grooved slides, so as to be easily removable; but it may be hinged or pivoted, if desired. Near the top of the box and upon its front face A is a similar opening (l, closed by a non-perforated or close cover H, mounted in the same manner as the ap F. Immediately behind this opening G is a device for retarding and retaining the dust or waste matter passing through the box. This device consists, essentially, of a bar or rod I, of a general cylindrical shape, provided with three or more rows of metallic pins or spines J J, radiating out from the bar I. This bar is attached by means of suitable hooks K K to the partition D in such a manner as to be readily removed through lthe opening G.

The entire device is mounted in the following manner, as illustrated in Fig. 3: The box is recessed within the wall or wainscoting of the room, with the iiange C upon the outside. The open bottom of the box communicates directly with the space between the joists and the iioor, so that the current of air will readily pass through the grating F, up along the front of the partition D, throughv the metal pins J J, over the top of the partition D, and

e down through the back of the boxY to the'floor,

under which it will pass to a suitable flue or lines on the opposite side of the room, from whence it will pass to the usual chimneys. Should the device become choked with dust or other dbris, it may be readily cleaned by removing the grating F. All of the liner dust, particles of paper, matches, lint, and other light Waste, dac., that pass through the grating F will be arrested by means of the pins J J, which maybe readily removed and cleaned byV opening the sliding door II. Y

I have described my invention as applied stantially as described, arranged adjacent to' the top of the partition.

2. An improved vent for Ventilating, consisting of a body divided into two portions by means of an upright partition, with a grating near the forward lower part of the body over the inlet, a dust-arrester near the top of the partition, and an opening adjacent to said dust-arrester, for the purposes set forth. Y

SAMUEL Z. MARTIN.

In presence of- J. R. YOUNGMAN, JOSEPH GRUFrUs. 

